BS EN 61280-4-4:2017提供了测量偏振模式色散的统一方法 单模已安装链路的（PMD）。安装的链路是发射器之间的光路 和接收器，或光路的一部分。这些测量值可用于评估 给定链接是否适用于高比特率应用，或提供有关 各种相关传播属性之间的关系。本文件的重点是 测量已安装电缆长度的测量方法和要求 还可以包括其他光学元件，如拼接、连接器、放大器、彩色 色散补偿模块、密集波分复用器或多路复用器 （DWDM）组件、多路复用器、波长选择开关、可重新配置的光纤 添加分接多路复用器（ROADMS）。本文件重点介绍了完成所需的仪器、程序和计算 测量。IEC TR 61282-9解释了试验方法背后的理论。交叉引用:IEC 60793-1-44:2011IEC 61300-3-35:2015 ED2IEC TR 61282- （IEC 60793-3-1-3-4:2011年）的（IEC 60793-1-1-44:2011）的（IEC 60793-1-1-44:2011）的）的）的）的）的）的）的）的）的）的）的）的）的）的）的）的）的）的）的）的）的）的）的）的）的）的）的）亚EC 61290-11-11-11-11-11-11-1（2008）的）的）的）的）的）的（2008）的）的）的）的）的）的）的）的）的）的）亚EC 616161290-11-11-11-11-11-11-11-11-11-11-11-11-11-11-11-11-11-11-2-2-11-2-2-2-2-2-2:2005）的（2005）的（2005）的）的）的（2005）的）的）11-1:2008 Ed 2IEC TR 61282-3:2002EN61300-3-32（IEC 61300-3-32:2006）ASEN 60793-1-48（IEC 60793-1-48:2007）ASIEC 60793-2-50:2015购买本文件时可获得的所有现行修订均包含在购买本文件中。

BS EN 61280-4-4:2017 provides uniform methods of measuring polarization mode dispersion (PMD) of single-mode installed links. An installed link is the optical path between transmitter and receiver, or a portion of that optical path. These measurements can be used to assess the suitability of a given link for high bit rate applications, or to provide insight on the relationships of various related transmission attributes. This document focuses on the measurement methods and requirements for measuring long lengths of installed cabling that can also include other optical elements, such as splices, connectors, amplifiers, chromatic dispersion compensating modules, dense wavelength division multiplexing or multiplexer (DWDM) components, multiplexers, wavelength selective switches, re-configurable optical add drop multiplexer (ROADMS).This document focuses on the apparatus, procedures, and calculations needed to complete measurements. IEC TR 61282-9 explains the theory behind the test methods.Cross References:IEC 60793-1-44:2011IEC 61300-3-35:2015 ED2IEC TR 61282-9:2016EN 61300-3-35 (IEC 61300-3-35:2015)ASEN 60793-1-44 (IEC 60793-1-44:2011)ASIEC TR 62627-01:2016IEC 60793-1-48:2007EN 61290-11-2(IEC 61290-11-2:2005) ASEN 61290-11-1 (IEC 61290-11-1:2008) ASIEC 61290-11-2:2005 Ed 1EN 60793-2-50 (IEC 60793-2-50:2015)ASEN 61280-4-4 (IEC 61280-4-4:2006) ASIEC 61280-4-4:2006IEC 60793-1-48:2003IEC 61300-3-32:2006 Ed 1IEC 61290-11-1:2008 Ed 2IEC TR 61282-3:2002EN 61300-3-32 (IEC 61300-3-32:2006)ASEN 60793-1-48 (IEC 60793-1-48:2007) ASIEC 60793-2-50:2015All current amendments available at time of purchase are included with the purchase of this document.